Verified answer

AREA OF A CIRCLE

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Problem

• A circular pond is to be surrounded by a fence. The radius of the pond is 2.5 m. How many meters of fence is needed to enclosed the pond?

Solution

Determine how many meters of fencing materials needed using the area of a circle formula where r is the radius squared multiplied by pi (π = 3.14).

The radius value 2.5 is equal to one-half the diameter of the circle, substitute 2.5 for r in the formula

Final Answer

• Therefore, Father will use 15.7 square meter of fencing materials
• The first option is the correct answer

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